Take a look at the FAQ for SolrCloud: http://wiki.apache.org/solr/SolrCloud#FAQ
- Mark On Nov 20, 2012, at 7:00 AM, Luis Cappa Banda <luisca...@gmail.com> wrote: > Hello everyone, > > I have developed a NRT Java app that indexes documents using a > CloudSolrServer instance. During my tests I have a SolrCloud composed by > only one shard and two Solr server instances. During the several tests I > did found just in one case the following error: > * > * > *12-11-20 12:54:03,609 3935290 [pool-1-thread-1-EventThread] ERROR > org.apache.solr.common.cloud.ZkStateReader - * > *org.apache.zookeeper.KeeperException$SessionExpiredException: > KeeperErrorCode = Session expired for /clusterstate.json* > * at org.apache.zookeeper.KeeperException.create(KeeperException.java:118)* > * at org.apache.zookeeper.KeeperException.create(KeeperException.java:42)* > * at org.apache.zookeeper.ZooKeeper.exists(ZooKeeper.java:815)* > * at > org.apache.solr.common.cloud.SolrZkClient$4.execute(SolrZkClient.java:193)* > * at > org.apache.solr.common.cloud.SolrZkClient$4.execute(SolrZkClient.java:190)* > * at > org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:63) > * > * at org.apache.solr.common.cloud.SolrZkClient.exists(SolrZkClient.java:190) > * > * at > org.apache.solr.common.cloud.ZkCmdExecutor.ensureExists(ZkCmdExecutor.java:90) > * > * at > org.apache.solr.common.cloud.ZkCmdExecutor.ensureExists(ZkCmdExecutor.java:84) > * > * at > org.apache.solr.common.cloud.ZkStateReader.createClusterStateWatchersAndUpdate(ZkStateReader.java:176) > * > * at > org.apache.solr.common.cloud.ZkStateReader$1.command(ZkStateReader.java:144) > * > * at > org.apache.solr.common.cloud.ConnectionManager$1.update(ConnectionManager.java:116) > * > * at > org.apache.solr.common.cloud.DefaultConnectionStrategy.reconnect(DefaultConnectionStrategy.java:46) > * > * at > org.apache.solr.common.cloud.ConnectionManager.process(ConnectionManager.java:90) > * > * at > org.apache.zookeeper.ClientCnxn$EventThread.processEvent(ClientCnxn.java:526) > * > * at org.apache.zookeeper.ClientCnxn$EventThread.run(ClientCnxn.java:502)* > *2012-11-20 12:54:07,052 3938733 [pool-1-thread-1-EventThread] ERROR > org.apache.solr.common.cloud.DefaultConnectionStrategy - Reconnect to > ZooKeeper failed:org.apache.solr.common.cloud.ZooKeeperException: * > * at > org.apache.solr.common.cloud.ZkStateReader$1.command(ZkStateReader.java:147) > * > * at > org.apache.solr.common.cloud.ConnectionManager$1.update(ConnectionManager.java:116) > * > * at > org.apache.solr.common.cloud.DefaultConnectionStrategy.reconnect(DefaultConnectionStrategy.java:46) > * > * at > org.apache.solr.common.cloud.ConnectionManager.process(ConnectionManager.java:90) > * > * at > org.apache.zookeeper.ClientCnxn$EventThread.processEvent(ClientCnxn.java:526) > * > * at org.apache.zookeeper.ClientCnxn$EventThread.run(ClientCnxn.java:502)* > *Caused by: org.apache.zookeeper.KeeperException$SessionExpiredException: > KeeperErrorCode = Session expired for /clusterstate.json* > * at org.apache.zookeeper.KeeperException.create(KeeperException.java:118)* > * at org.apache.zookeeper.KeeperException.create(KeeperException.java:42)* > * at org.apache.zookeeper.ZooKeeper.exists(ZooKeeper.java:815)* > * at > org.apache.solr.common.cloud.SolrZkClient$4.execute(SolrZkClient.java:193)* > * at > org.apache.solr.common.cloud.SolrZkClient$4.execute(SolrZkClient.java:190)* > * at > org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:63) > * > * at org.apache.solr.common.cloud.SolrZkClient.exists(SolrZkClient.java:190) > * > * at > org.apache.solr.common.cloud.ZkCmdExecutor.ensureExists(ZkCmdExecutor.java:90) > * > * at > org.apache.solr.common.cloud.ZkCmdExecutor.ensureExists(ZkCmdExecutor.java:84) > * > * at > org.apache.solr.common.cloud.ZkStateReader.createClusterStateWatchersAndUpdate(ZkStateReader.java:176) > * > * at > org.apache.solr.common.cloud.ZkStateReader$1.command(ZkStateReader.java:144) > * > * ... 5 more* > > Probably it might be related with some kind of out memory unavailable > issue, because I´m doing the tests in a very limitated machine, but maybe > the origin is different and someone could tell me more about it. > > Thanks a lot in advance. > > > Regards, > > > -- > > - Luis Cappa
